INIT: Entering runlevel: 2

[info] Using makefile-style concurrent boot in runlevel 2.
[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c.

Debian GNU/Linux 7 syzkaller ttyS0

Warning: Permanently added 'ci-upstream-mmots-kasan-gce-6,10.128.0.30' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   33.101424] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu
[   33.104483] usercopy: kernel memory overwrite attempt detected to ffff8801d1da1bd4 (kvm_vcpu) (80 bytes)
[   33.105900] ------------[ cut here ]------------
[   33.106568] kernel BUG at mm/usercopy.c:84!
[   33.107162] invalid opcode: 0000 [#1] SMP KASAN
[   33.107784] Dumping ftrace buffer:
[   33.108261]    (ftrace buffer empty)
[   33.108757] Modules linked in:
[   33.109228] CPU: 1 PID: 2989 Comm: syzkaller415442 Not tainted 4.14.0-rc5-mm1+ #20
[   33.110268] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   33.111488] task: ffff8801d1d620c0 task.stack: ffff8801d1d10000
[   33.112319] RIP: 0010:__check_object_size+0x3a2/0x4f0
[   33.113016] RSP: 0018:ffff8801d1d17148 EFLAGS: 00010286
[   33.113760] RAX: 000000000000005c RBX: ffffffff8511a100 RCX: 0000000000000000
[   33.114725] RDX: 000000000000005c RSI: 1ffff1003a3a2de9 RDI: ffffed003a3a2e1d
[   33.115679] RBP: ffff8801d1d17238 R08: 0000000000000001 R09: 0000000000000000
[   33.116632] R10: 0000000000000001 R11: 0000000000000000 R12: ffffffff8511a0c0
[   33.117598] R13: ffff8801d1da1bd4 R14: 0000000000000050 R15: ffffea0007476800
[   33.118570] FS:  000000000108e880(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
[   33.119647] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   33.120421] CR2: 0000000020ccbfe3 CR3: 00000001d28bc000 CR4: 00000000001426e0
[   33.121374] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   33.127350] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   33.134587] Call Trace:
[   33.137144]  ? lock_release+0xa40/0xa40
[   33.141087]  ? check_stack_object+0x140/0x140
[   33.145555]  ? __might_sleep+0x95/0x190
[   33.149504]  kvm_vcpu_ioctl_set_cpuid2+0x75/0x1a0
[   33.154317]  kvm_arch_vcpu_ioctl+0x1718/0x4710
[   33.158866]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   33.163851]  ? kvm_arch_vcpu_put+0x3e0/0x3e0
[   33.168227]  ? get_kernel_page+0x110/0x110
[   33.172430]  ? __lru_cache_add+0x2a4/0x410
[   33.176633]  ? __pagevec_lru_add+0x30/0x30
[   33.180839]  ? save_stack+0xa3/0xd0
[   33.184432]  ? save_stack+0x43/0xd0
[   33.188031]  ? kasan_kmalloc+0xad/0xe0
[   33.191887]  ? print_irqtrace_events+0x270/0x270
[   33.196610]  ? __handle_mm_fault+0x1827/0x39c0
[   33.201160]  ? check_noncircular+0x20/0x20
[   33.205359]  ? lru_cache_add+0x1c7/0x3a0
[   33.209385]  ? get_mem_cgroup_from_mm+0x710/0x710
[   33.214193]  ? lru_cache_add_file+0x20/0x20
[   33.218484]  ? lock_acquire+0x1d5/0x580
[   33.222422]  ? lock_acquire+0x1d5/0x580
[   33.226361]  ? vcpu_load+0x1c/0x70
[   33.229869]  ? lock_release+0xa40/0xa40
[   33.233810]  ? trace_event_raw_event_sched_switch+0x8a0/0x8a0
[   33.239660]  ? find_held_lock+0x35/0x1d0
[   33.243692]  ? rcu_note_context_switch+0x710/0x710
[   33.248596]  ? __might_sleep+0x95/0x190
[   33.252535]  ? vcpu_load+0x1c/0x70
[   33.256044]  ? __mutex_lock+0x16f/0x19d0
[   33.260069]  ? vcpu_load+0x1c/0x70
[   33.263575]  ? do_raw_spin_trylock+0x190/0x190
[   33.268123]  ? trace_event_raw_event_sched_switch+0x8a0/0x8a0
[   33.273972]  ? vcpu_load+0x1c/0x70
[   33.277481]  ? mutex_lock_io_nested+0x1880/0x1880
[   33.282294]  ? _raw_spin_unlock+0x22/0x30
[   33.286408]  ? do_huge_pmd_anonymous_page+0xb21/0x1b00
[   33.291652]  ? __thp_get_unmapped_area+0x130/0x130
[   33.296548]  ? vmx_vcpu_load+0x9c6/0xdd0
[   33.300576]  ? handle_invept+0x5f0/0x5f0
[   33.304600]  ? trace_hardirqs_on+0xd/0x10
[   33.308715]  ? queue_delayed_work_on+0x10d/0x1d0
[   33.313438]  ? refcount_add+0x60/0x60
[   33.317210]  ? kvm_arch_vcpu_create+0x1a0/0x1a0
[   33.321850]  ? kvm_vm_ioctl+0x220/0x1c40
[   33.325874]  ? kfree+0xe4/0x250
[   33.329121]  ? kvm_arch_vcpu_load+0x1c1/0x890
[   33.333580]  ? kvm_arch_vcpu_load+0x4b1/0x890
[   33.338040]  ? kvm_arch_dev_ioctl+0x3b0/0x3b0
[   33.342504]  ? __hrtick_start+0x1d0/0x1d0
[   33.346619]  ? vcpu_load+0x4b/0x70
[   33.350125]  kvm_vcpu_ioctl+0x240/0x1010
[   33.354155]  ? __kvm_gfn_to_hva_cache_init+0xbb0/0xbb0
[   33.359399]  ? find_held_lock+0x35/0x1d0
[   33.363430]  ? handle_mm_fault+0x248/0x8d0
[   33.367634]  ? find_held_lock+0x35/0x1d0
[   33.371666]  ? __do_page_fault+0x64c/0xd60
[   33.375866]  ? lock_downgrade+0x990/0x990
[   33.379983]  ? handle_mm_fault+0x410/0x8d0
[   33.384181]  ? down_read_trylock+0xdb/0x170
[   33.388468]  ? __do_page_fault+0x31e/0xd60
[   33.392668]  ? __handle_mm_fault+0x39c0/0x39c0
[   33.397215]  ? vmacache_find+0x5f/0x280
[   33.401158]  ? up_read+0x1a/0x40
[   33.404490]  ? __do_page_fault+0x3d6/0xd60
[   33.408693]  ? __kvm_gfn_to_hva_cache_init+0xbb0/0xbb0
[   33.413933]  do_vfs_ioctl+0x1b1/0x1520
[   33.417784]  ? _cond_resched+0x14/0x30
[   33.421638]  ? ioctl_preallocate+0x2b0/0x2b0
[   33.426017]  ? selinux_capable+0x40/0x40
[   33.430043]  ? putname+0xf3/0x130
[   33.433472]  ? security_file_ioctl+0x89/0xb0
[   33.437845]  SyS_ioctl+0x8f/0xc0
[   33.441181]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   33.445904] RIP: 0033:0x43fdd9
[   33.449060] RSP: 002b:00007ffdf4c3faf8 EFLAGS: 00000203 ORIG_RAX: 0000000000000010
[   33.456733] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fdd9
[   33.463966] RDX: 0000000020ccbfe3 RSI: 000000004008ae90 RDI: 0000000000000005
[   33.471202] RBP: 0000000000000082 R08: 0000000000000000 R09: 0000000000000000
[   33.478435] R10: 0000000000000000 R11: 0000000000000203 R12: 0000000000401740
[   33.485670] R13: 00000000004017d0 R14: 0000000000000000 R15: 0000000000000000
[   33.492914] Code: 48 0f 44 da e8 e0 d7 c3 ff 48 8b 85 28 ff ff ff 4d 89 f1 4c 89 e9 4c 89 e2 48 89 de 48 c7 c7 c0 a1 11 85 49 89 c0 e8 33 e3 ad ff <0f> 0b 48 c7 c0 80 9f 11 85 eb 96 48 c7 c0 c0 9f 11 85 eb 8d 48 
[   33.511979] RIP: __check_object_size+0x3a2/0x4f0 RSP: ffff8801d1d17148
[   33.518677] ---[ end trace 28bfbdb9c24778c6 ]---
[   33.523602] Kernel panic - not syncing: Fatal exception
[   33.528981] Dumping ftrace buffer:
[   33.532490]    (ftrace buffer empty)
[   33.536168] Kernel Offset: disabled
[   33.539764] Rebooting in 86400 seconds..